/* * PowerMac MacIO device emulation * * Copyright (c) 2005-2007 Fabrice Bellard * Copyright (c) 2007 Jocelyn Mayer * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/hw.h" #include "hw/ppc/mac.h" #include "hw/misc/macio/cuda.h" #include "hw/pci/pci.h" #include "hw/ppc/mac_dbdma.h" #include "hw/char/escc.h" #include "hw/misc/macio/macio.h" #include "hw/intc/heathrow_pic.h" /* Note: this code is strongly inspirated from the corresponding code * in PearPC */ /* * The mac-io has two interfaces to the ESCC. One is called "escc-legacy", * while the other one is the normal, current ESCC interface. * * The magic below creates memory aliases to spawn the escc-legacy device * purely by rerouting the respective registers to our escc region. This * works because the only difference between the two memory regions is the * register layout, not their semantics. * * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf */ static void macio_escc_legacy_setup(MacIOState *s) { ESCCState *escc = ESCC(&s->escc); SysBusDevice *sbd = SYS_BUS_DEVICE(escc); MemoryRegion *escc_legacy = g_new(MemoryRegion, 1); MemoryRegion *bar = &s->bar; int i; static const int maps[] = { 0x00, 0x00, /* Command B */ 0x02, 0x20, /* Command A */ 0x04, 0x10, /* Data B */ 0x06, 0x30, /* Data A */ 0x08, 0x40, /* Enhancement B */ 0x0A, 0x50, /* Enhancement A */ 0x80, 0x80, /* Recovery count */ 0x90, 0x90, /* Start A */ 0xa0, 0xa0, /* Start B */ 0xb0, 0xb0, /* Detect AB */ }; memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256); for (i = 0; i < ARRAY_SIZE(maps); i += 2) { MemoryRegion *port = g_new(MemoryRegion, 1); memory_region_init_alias(port, OBJECT(s), "escc-legacy-port", sysbus_mmio_get_region(sbd, 0), maps[i + 1], 0x2); memory_region_add_subregion(escc_legacy, maps[i], port); } memory_region_add_subregion(bar, 0x12000, escc_legacy); } static void macio_bar_setup(MacIOState *s) { ESCCState *escc = ESCC(&s->escc); SysBusDevice *sbd = SYS_BUS_DEVICE(escc); MemoryRegion *bar = &s->bar; memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0)); macio_escc_legacy_setup(s); } static void macio_common_realize(PCIDevice *d, Error **errp) { MacIOState *s = MACIO(d); SysBusDevice *sysbus_dev; Error *err = NULL; object_property_set_bool(OBJECT(&s->dbdma), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_dev = SYS_BUS_DEVICE(&s->dbdma); memory_region_add_subregion(&s->bar, 0x08000, sysbus_mmio_get_region(sysbus_dev, 0)); qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", s->frequency); object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_dev = SYS_BUS_DEVICE(&s->cuda); memory_region_add_subregion(&s->bar, 0x16000, sysbus_mmio_get_region(sysbus_dev, 0)); qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); object_property_set_bool(OBJECT(&s->escc), true, "realized", &err); if (err) { error_propagate(errp, err); return; } macio_bar_setup(s); pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); } static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, qemu_irq irq0, qemu_irq irq1, int dmaid, Error **errp) { SysBusDevice *sysbus_dev; sysbus_dev = SYS_BUS_DEVICE(ide); sysbus_connect_irq(sysbus_dev, 0, irq0); sysbus_connect_irq(sysbus_dev, 1, irq1); qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid); object_property_set_link(OBJECT(ide), OBJECT(&s->dbdma), "dbdma", errp); macio_ide_register_dma(ide); object_property_set_bool(OBJECT(ide), true, "realized", errp); } static void macio_oldworld_realize(PCIDevice *d, Error **errp) { MacIOState *s = MACIO(d); OldWorldMacIOState *os = OLDWORLD_MACIO(d); DeviceState *pic_dev = DEVICE(os->pic); Error *err = NULL; SysBusDevice *sysbus_dev; macio_common_realize(d, &err); if (err) { error_propagate(errp, err); return; } sysbus_dev = SYS_BUS_DEVICE(&s->cuda); sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, OLDWORLD_CUDA_IRQ)); sysbus_dev = SYS_BUS_DEVICE(&s->escc); sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, OLDWORLD_ESCCB_IRQ)); sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, OLDWORLD_ESCCA_IRQ)); object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_dev = SYS_BUS_DEVICE(&os->nvram); memory_region_add_subregion(&s->bar, 0x60000, sysbus_mmio_get_region(sysbus_dev, 0)); pmac_format_nvram_partition(&os->nvram, os->nvram.size); /* Heathrow PIC */ sysbus_dev = SYS_BUS_DEVICE(os->pic); memory_region_add_subregion(&s->bar, 0x0, sysbus_mmio_get_region(sysbus_dev, 0)); /* IDE buses */ macio_realize_ide(s, &os->ide[0], qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ), qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ), 0x16, &err); if (err) { error_propagate(errp, err); return; } macio_realize_ide(s, &os->ide[1], qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ), qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ), 0x1a, &err); if (err) { error_propagate(errp, err); return; } } static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size, int index) { gchar *name; object_initialize(ide, ide_size, TYPE_MACIO_IDE); qdev_set_parent_bus(DEVICE(ide), sysbus_get_default()); memory_region_add_subregion(&s->bar, 0x1f000 + ((index + 1) * 0x1000), &ide->mem); name = g_strdup_printf("ide[%i]", index); object_property_add_child(OBJECT(s), name, OBJECT(ide), NULL); g_free(name); } static void macio_oldworld_init(Object *obj) { MacIOState *s = MACIO(obj); OldWorldMacIOState *os = OLDWORLD_MACIO(obj); DeviceState *dev; int i; object_property_add_link(obj, "pic", TYPE_HEATHROW, (Object **) &os->pic, qdev_prop_allow_set_link_before_realize, 0, NULL); object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM); dev = DEVICE(&os->nvram); qdev_prop_set_uint32(dev, "size", 0x2000); qdev_prop_set_uint32(dev, "it_shift", 4); for (i = 0; i < 2; i++) { macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i); } } static void timer_write(void *opaque, hwaddr addr, uint64_t value, unsigned size) { } static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) { uint32_t value = 0; uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); uint64_t kltime; kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4); kltime = muldiv64(kltime, 18432000, 1048575); switch (addr) { case 0x38: value = kltime; break; case 0x3c: value = kltime >> 32; break; } return value; } static const MemoryRegionOps timer_ops = { .read = timer_read, .write = timer_write, .endianness = DEVICE_LITTLE_ENDIAN, }; static void macio_newworld_realize(PCIDevice *d, Error **errp) { MacIOState *s = MACIO(d); NewWorldMacIOState *ns = NEWWORLD_MACIO(d); DeviceState *pic_dev = DEVICE(ns->pic); Error *err = NULL; SysBusDevice *sysbus_dev; MemoryRegion *timer_memory = NULL; macio_common_realize(d, &err); if (err) { error_propagate(errp, err); return; } sysbus_dev = SYS_BUS_DEVICE(&s->cuda); sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, NEWWORLD_CUDA_IRQ)); sysbus_dev = SYS_BUS_DEVICE(&s->escc); sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, NEWWORLD_ESCCB_IRQ)); sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, NEWWORLD_ESCCA_IRQ)); /* OpenPIC */ sysbus_dev = SYS_BUS_DEVICE(ns->pic); memory_region_add_subregion(&s->bar, 0x40000, sysbus_mmio_get_region(sysbus_dev, 0)); /* IDE buses */ macio_realize_ide(s, &ns->ide[0], qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ), qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ), 0x16, &err); if (err) { error_propagate(errp, err); return; } macio_realize_ide(s, &ns->ide[1], qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ), qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ), 0x1a, &err); if (err) { error_propagate(errp, err); return; } /* Timer */ timer_memory = g_new(MemoryRegion, 1); memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 0x1000); memory_region_add_subregion(&s->bar, 0x15000, timer_memory); } static void macio_newworld_init(Object *obj) { MacIOState *s = MACIO(obj); NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); int i; object_property_add_link(obj, "pic", TYPE_OPENPIC, (Object **) &ns->pic, qdev_prop_allow_set_link_before_realize, 0, NULL); for (i = 0; i < 2; i++) { macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i); } } static void macio_instance_init(Object *obj) { MacIOState *s = MACIO(obj); memory_region_init(&s->bar, obj, "macio", 0x80000); object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA); qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default()); object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL); object_initialize(&s->dbdma, sizeof(s->dbdma), TYPE_MAC_DBDMA); qdev_set_parent_bus(DEVICE(&s->dbdma), sysbus_get_default()); object_property_add_child(obj, "dbdma", OBJECT(&s->dbdma), NULL); object_initialize(&s->escc, sizeof(s->escc), TYPE_ESCC); qdev_set_parent_bus(DEVICE(&s->escc), sysbus_get_default()); object_property_add_child(obj, "escc", OBJECT(&s->escc), NULL); } static const VMStateDescription vmstate_macio_oldworld = { .name = "macio-oldworld", .version_id = 0, .minimum_version_id = 0, .fields = (VMStateField[]) { VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), VMSTATE_END_OF_LIST() } }; static void macio_oldworld_class_init(ObjectClass *oc, void *data) { PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); DeviceClass *dc = DEVICE_CLASS(oc); pdc->realize = macio_oldworld_realize; pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; dc->vmsd = &vmstate_macio_oldworld; } static const VMStateDescription vmstate_macio_newworld = { .name = "macio-newworld", .version_id = 0, .minimum_version_id = 0, .fields = (VMStateField[]) { VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), VMSTATE_END_OF_LIST() } }; static void macio_newworld_class_init(ObjectClass *oc, void *data) { PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); DeviceClass *dc = DEVICE_CLASS(oc); pdc->realize = macio_newworld_realize; pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; dc->vmsd = &vmstate_macio_newworld; } static Property macio_properties[] = { DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), DEFINE_PROP_END_OF_LIST() }; static void macio_class_init(ObjectClass *klass, void *data) { PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); DeviceClass *dc = DEVICE_CLASS(klass); k->vendor_id = PCI_VENDOR_ID_APPLE; k->class_id = PCI_CLASS_OTHERS << 8; dc->props = macio_properties; set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); /* Reason: Uses serial_hds in macio_instance_init */ dc->user_creatable = false; } static const TypeInfo macio_oldworld_type_info = { .name = TYPE_OLDWORLD_MACIO, .parent = TYPE_MACIO, .instance_size = sizeof(OldWorldMacIOState), .instance_init = macio_oldworld_init, .class_init = macio_oldworld_class_init, }; static const TypeInfo macio_newworld_type_info = { .name = TYPE_NEWWORLD_MACIO, .parent = TYPE_MACIO, .instance_size = sizeof(NewWorldMacIOState), .instance_init = macio_newworld_init, .class_init = macio_newworld_class_init, }; static const TypeInfo macio_type_info = { .name = TYPE_MACIO, .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(MacIOState), .instance_init = macio_instance_init, .abstract = true, .class_init = macio_class_init, .interfaces = (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { }, }, }; static void macio_register_types(void) { type_register_static(&macio_type_info); type_register_static(&macio_oldworld_type_info); type_register_static(&macio_newworld_type_info); } type_init(macio_register_types)